ADU Contractors near Montclair, CA
Oasis Builders
11500 West Olympic Boulevard, Los Angeles, CA 90064
42.8 miles
Oasis Builders is a trusted ADU contractor serving Greater Los Angeles, specializing in detached ADUs, attached ADUs, and garage conversions. Costs range from $100K–$300K, with timelines of 6–12 months. Full-service: permits, blueprints & turnkey construction.
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Blue Dog Construction
4199 Flat Rock Road, Riverside, CA 92505
16.6 miles
Bunch Design
2718 West Avenue 34, Los Angeles, CA 90065
42.6 miles
ADUs (granny flats/backyard cottages) boost property value & rental income. Bunch Design, LA, offers custom & pre-designed ADUs: Garage Studio ($300K+), Cottage ($400K+), Stop Making Sense ($425K+), and Step ADU ($425K+).
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Eureka Modular
2553 Sampson Avenue, Corona, CA 92879
15.2 miles
Eureka Modular builds steel frame modular ADUs and single family homes. Steel framing offers durability, design flexibility, and sustainability. Ideal for detached ADUs, backyard cottages, granny flats, and casitas with efficient, precise construction.
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IA Builders
10736 Jefferson Blvd, Unit 703, Culver City, CA 90230
40.1 miles
IA Builders is a Los Angeles construction company offering new home builds, remodeling, additions, and ADU construction. Services include garage conversions, detached ADUs, and in-law suites, delivered with quality craftsmanship and transparent pricing.
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LA Developing Inc.
8504 Firestone Boulevard, Downey, CA 90241
26.4 miles
An Accessory Dwelling Unit (ADU) adds value, rental income, and flexibility to your property. LA Developing Inc. specializes in ADU construction in Los Angeles, offering garage conversions, detached builds, and attached additions with full project support.
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Custom ADU Builder
Los Angeles, CA 90012
31.2 miles
Custom ADU Builder specializes in detached ADUs, attached ADUs, garage conversions & JADUs. Projects complete in ~3 months. Pricing starts at $235/sqft. Turn-key builds include quartz countertops, tile showers & luxury vinyl flooring.
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J&I Construction
10054 Alondra Boulevard, Bellflower, CA 90706
27.5 miles
J&I Construction is a trusted ADU contractor offering full-scope accessory dwelling unit services, including detached ADUs, garage conversions, granny flats, in-law suites, JADUs, and backyard cottages. Free consultations available.
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Revival Homes
1150 South Olive Street, Los Angeles, CA 90015
32.3 miles
Revival Homes is a California ADU project manager handling planning, financing, design, permitting, and construction. They build detached ADUs, garage conversions, JADUs, and more, with costs ranging from $100K to $300K.
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Beach Builders Custom Homes
13001 Seal Beach Boulevard, Seal Beach, CA 90740
30 miles
Beach Builders Custom Homes offers full-service ADU and garage conversion services in Los Angeles and Orange County. From permits to construction, they build granny flats, backyard cottages, and JADUs with smart home tech, earning homeowners $1,200–$1,600/month.
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Angelus Construction
330 Arden Avenue, Glendale, CA 91203
32.5 miles
Angelus Construction is a Los Angeles ADU contractor with 30+ years of experience. They offer full-service ADU design, permitting, and construction, plus residential remodeling across Los Angeles and Ventura Counties.
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Baumeister Construction
1379 West Park Western Drive, San Pedro, CA 90732
41.4 miles
Baumeister Construction offers full-service ADU construction in Carson, CA, including garage conversions, JADUs & detached units. 20+ years experience, woman-led, covering design, permitting & sustainable builds.
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ADU Resource Center
600 North Brand Boulevard, Glendale, CA 91203
32.4 miles
ADU Resource Center is a Glendale, CA-based ADU contractor with 600+ completed units. They offer full-service ADU building, including design, permitting, financing, and construction of detached, attached, and garage conversion ADUs across Southern California.
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BuildShure
401 Corporate Pointe, Culver City, CA 90230
40 miles
BuildShure specializes in ADUs and tiny homes, offering models like Studio Pod, Casita, and 2-bed Residence built with SIP Panels. They guarantee fixed pricing and pay $500/day for delays, ensuring reliable, energy-efficient backyard cottages.
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Ted Design Build
513 West Wilson Avenue, Los Angeles, CA 91203
32.6 miles
Ted Design Build is an LA-based ADU contractor offering full-service design, permitting, and construction. Specializing in detached ADUs, garage conversions, and in-law suites across Los Angeles and Glendale.
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Other cities in California
What you need to know
Building ADUs in Montclair, CA: A City Shaped by the San Gabriel Valley
Montclair, California, is a compact yet vibrant city in San Bernardino County, nestled between the cities of Ontario and Claremont in the eastern San Gabriel Valley. With a population of around 40,000 residents and a relatively dense urban layout, Montclair has seen growing demand for Accessory Dwelling Units (ADUs). The city's proximity to major employment hubs, Metrolink transit stations, and the Montclair Place shopping center makes it an attractive location for homeowners looking to add rental income or multigenerational housing through ADU construction.
ADU Regulations and Zoning in Montclair, California
ADU contractors working in Montclair must comply with both California state ADU laws and the City of Montclair's local development standards. California's ADU legislation, particularly updates made through AB 68, AB 881, and SB 13, has streamlined the permitting process statewide, and Montclair follows these guidelines. Key regulations that experienced ADU contractors in Montclair need to navigate include:
- Setback requirements: A minimum 4-foot rear and side setback is typically required for new detached ADUs.
- Maximum ADU size: Detached ADUs can be up to 1,200 square feet, while attached ADUs are generally limited to 50% of the primary dwelling's square footage.
- Height limits: Detached ADUs are generally limited to 16 feet in height, though specific lot conditions may allow for up to 18 feet near transit corridors.
- Owner-occupancy rules: As of 2020, California law removed the owner-occupancy requirement until 2025, giving Montclair homeowners more flexibility.
- Parking: ADUs located within half a mile of public transit, such as the Montclair Metrolink Station, are typically exempt from additional parking requirements.
Why Hire a Local ADU Contractor in Montclair?
Hiring a licensed ADU contractor familiar with Montclair's Building and Safety Division is essential for a smooth permitting and construction process. Local contractors understand the city's specific plan review timelines, utility connection requirements, and San Bernardino County building codes that apply to Montclair projects. They can also help homeowners take advantage of California's streamlined ADU permit approval process, which mandates approval within 60 days for complete applications.
Types of ADUs Commonly Built in Montclair
Given Montclair's typical single-family residential neighborhoods and lot sizes, the most common ADU types constructed by local contractors include:
- Detached backyard ADUs (garage conversions or new construction)
- Attached ADUs added to the side or rear of existing homes
- Junior ADUs (JADUs) created from existing interior space, up to 500 square feet
Start Your Montclair ADU Project Today
Whether you're looking to generate rental income, house extended family, or increase your property value, working with a qualified ADU contractor in Montclair, CA is the first step. Make sure your contractor is licensed by the California Contractors State License Board (CSLB) and has verifiable experience with ADU projects in San Bernardino County.